Feeding device for lumber-jointing machines.



W. WILLS.

EEEDING nEvlcE Foa LUMBER Iomms MACHINES.

APPLICATION FILED IIIAYV. I9I7- Patented Dee. 4,1917.

2 SHEETS-SHEET I III IIII IIIIII l l I l IIHIIIII W. WILLS.

FEEDING DEVICE FOR LUMBERJOINTING MACHINES.

APPLICATION FILED MAY 7, |917.

Patnted De@ 4, 1917.

2 SHEETS-SHEET 2- entre WILLIAM WILLS, OF NEWARK-UPGN-TRENT, ENGLAND,ASSIGNOR 'IO A. RANSME n,

COMPANY, LIMITED, OF NEWARK-UFE'ON-TRENT, ENGLAND.

FEEDING DEVICE FOR LUllIBEIt-JOINTING MACHINES.

Laisser.

l Application filed May 7, 191.7.

To aZZ whom t may Concern:

Ee it known that I, VVILLiAM VILLS, a subject of the King of GreatBritain, residing at 70 Lindum Grove, Beacon Hill Road,Newark-upon-Trent, `England, have invented a new and useful Improvementin Feeding Devices for Lumber-Jointing Machines, of which the followingis a specification.

This invention relates to a feeding device for lumber jointing machinesand is especially applicable for use with the machines described inAlbert rThorp Lindermans Patent No. 827738.

According to this invention a link of the carrier chain by which thelumber is oonveyed along a machine has pivoted to it a springless dogactuated by a sliding wedge which raises or lowers the pushing end ofthe dog and holds it positively in either position.

The accompanying drawings show a feeding device made in accordance withthis invention applied to the feed of `a lumber jointing machine. Figurel is a plan with the carrier chain removed and Fig. 2 is a parttransverse section of the same with the carrier chain in position. Figs.3 and 4f are a side view and end view respectively of the wedge foroperating the dog.

The endless carrier chain by which the lumber is conveyed along themachine consists of carrier links a connected together by coupling linksZ). The endless carrier chain passes over pulleys c, c, mounted upon ashaft Z supported by bearings e, e, at the end of the machine. To eachcarrier link a is pivoted at f a dog g which is raised and lowered bymeans of a sliding wedge t, on which are projections h1, h2, engagingwith guides al on the link a.

The dog g is positively held in its lowered position by means of twoinclines hr3, h4, on the forward end of the wedge 7L, which arerespectively in contact with both the head g1 and the tail g2 of the dogg. rlhe dog g is also positively held in its raised position by means ofan incline 71,5 on the rear end of the wedge b which is in contact withthe head g1, and another incline h6 which is in contact with the tailg2.

The wedge h is slidden upon the guides Specification of Letters Patent.

Patented Dee.. el, ltgvll'.,

serial No. 166,956.

al by a lever j mounted on a shaft jl on which is an arm jg retained incontact with the periphery of a cam L by means of a spring encirclingthe shaft jl. rllhe cam ZL' is mounted on a shaft Z supported inbearings Zj, Z1. @n the shaft Z are toothed wheels Z2, Z5, Z4, one orother of which is in mesh with a toothed wheel m which meshes with atoothed wheel a on the shaft CZ. The toothed wheel m is mounted on anarm m1 of a frame m2 which is secured in position by a pin m3 passingthrough a socket m4 on the frame m2 and through one or other of theholes m5, m6, ml, in the main frame o of the machine.

As the pulleys c, C, are turned by the chain carrier the shaft (Zrevolves turning the cam Zt, when the arm enters the recess k1 in thecani c and the lever under the action of the spring .engages with thewedge h causing it to slide upon the guides co1 and to raise the dog yinto its operative position. rihe wedge Zt as the link a travels, comesin contact with a stop p and is caused to slide back upon the guides al,thus lowering the dog g.

lllhat l claim is:

l. A feeding` device for lumber jointing machines comprising a chain,links in the chain, dogs pivoted to the links, each dog actuated by asliding wedge, and means for sliding the wedge.

2. A feeding device for lumber jointing machines comprising a chain,links in the chain, dogs pivoted to the links, each dog raised andlowered and positively held in either position by a sliding wedge, andmeans for sliding the wedge.

3. A feeding device for lumber jointing machines comprising a chain,links in the chain, dogs pivoted to the links, each dog actuated by asliding wedge, a pivoted. le ver for sliding the wedge, a cam forturning the lever, means for retaining the lever in contact with thecam, means for turning the cam and a stop for sliding back the wedge.

ll. A feeding device for lumber jointing machines comprising a chain,links in the chain, dogs pivoted to the links, each dog raised andlowered and positively held in either position by a sliding Wedge, apivotas my invention I have signed my name this ed lever :flor 1slidingthe vedge, a cam flor lifth day of April, 1917. turnin t e ever means orretainin tie lever Contact ,with the cam, mean for WILLIAM WILLS 5 nturning the cam and a lstop for sliding back Witnesses: e the Wedge.Ti-Ios. H. COOK,

In testimony that Iv claim the foregoing C. M. HITCH.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C."

